Minimalist 50K Trail Run Training: Using Only a Vest Pack and Trail Shorts

In the world of trail running, 50 kilometers isn't a just-do-it number. It involves not only hours of running but also varying elevation changes, potentially unpredictable weather conditions, and meticulous management of supplies and gear. Most people choose to pack their gear—hydration packs, spare clothing, and sufficient energy supplies—as if anything less would make them unable to make it.

But my goal this time was different: to complete the entire course in summer conditions, using only a functional trail running vest and a pair of high-performance shorts. This minimalist approach is not only a test of physical fitness but also a testament to the functionality of my gear.

Why dare to go minimalist?

A 50km trail run conjures up images of a large backpack, long-sleeved sun protection jacket, windbreaker, spare hydration bladder, and a full supply system... For many runners, it seems like a distance they wouldn't dare embark on without the full gear. However, given the specific climate, route, and gear configuration, I chose to complete the entire training course using only a vest pack and a pair of high-performance shorts—not out of sheer effort, but based on careful planning and maximizing the functionality of my gear.

The core premise of daring to be minimalist lies in three key areas:

• Controllable climate and environment
  • The temperature range is between 18°C and 28°C, with no rainstorm warnings and no sudden drops to single-digit temperatures at high altitudes.
  • No more than one-third of the route is exposed to direct sunlight, with some shade from trees or mountains.
  • Moderate wind speed (no more than force 4) to avoid prolonged exposure to the wind, which can cause temperature fluctuations.
• Guaranteed supplies and safety
  • Reliable resupply points (including water, energy, and first aid) are available every 10-15 kilometers along the route.
  • Companions or volunteers are available at key points on training days, or at least contact with rescue teams is readily available.
  • The signal is stable in areas along the way, with no long-term loss of connection.
• Multifunctional Gear
  • A vest pack is more than just a layer of fabric; it's a mobile supply station, integrating storage, protection, and hydration, reducing the burden of an extra backpack.
  • Shorts offer more than just protection; they combine support, friction reduction, quick-drying, and protection, keeping your legs comfortable and efficient during long runs.
  • All your belongings are accessible on the run, eliminating the need to stop and search, ensuring a consistent cadence.

Why Try Minimalism?

• Lighter Carrying Weight → Reduces weight by 20-40 grams per kilometer, significantly reducing fatigue accumulation over time.
• More Consistent Pace → No need to constantly adjust your pack or access items, allowing for greater focus.
• Simulate Race Conditions → For summer trail running races with short refueling intervals, minimalist training is a great way to simulate real-world conditions.

At Haimont, we've consistently developed a function equals weight reduction equipment philosophy—not blindly removing equipment, but rather empowering each piece of clothing to perform more tasks, ensuring both lightness and safety.

Trail Vest Pack: The Core Mobile Supply Station

During a minimalist 50km training session, a vest pack isn't just an accessory; it's the core platform of the entire system. It not only provides storage but also directly impacts a runner's ability to efficiently refuel, maintain their pace, and minimize strain during long distances. A good vest pack is like a portable mobile supply station.

Fit and Stability

A vest pack should fit your upper body like a second skin:

• Wide and elastic shoulder straps: Distribute pressure and reduce shoulder marks.
• Multiple adjustments: Adjustable at the chest and sides to accommodate different body shapes.
• Anti-sway design: Even when filled with water and supplies, it remains stable, preventing any movement from side to side and any disruption to your breathing rhythm.

Hydration System

During long-distance trail running, you need to hydrate more frequently than you might think. A vest pack should provide flexible hydration options:

• Dual soft flasks: Two 500ml soft flasks can be easily accessed with one hand, minimizing downtime.
• Hydration bladder system compatibility: Some routes accommodate a 1.5L-2L hydration bladder.
• Leak-proof material: Prevents water from soaking through clothing and causing friction.

Storage and compartmentalization

Logical compartmentalization allows for easy access while running:

• Chest pocket: Energy gels, salt pills, sunscreen sticks, headphones, etc.
• Side stretch pockets: Trash bags, gloves, folded tissues
• Back main compartment: Lightweight windbreaker, spare headlamp, small first aid kit
• Hidden zipper pocket: Cell phone, car keys, and other valuables.

Breathability and Comfort

During summer minimalist training, a vest pack should minimize stuffiness:

• Large mesh construction: Improves airflow
• Moisture-wicking fabric: Reduces sweat buildup
• Anti-chafing edging: Soft edging around the neck, shoulders, and underarms prevents chafing during long runs

Practical Usage Tips

• Before setting off, arrange items by frequency of use (high-frequency items at the front, low-frequency items at the back).
• Don't fill your soft water bottle all at once—filling it 70%-80% full will reduce movement.
• Energy gels should be grouped with rubber bands for easy access.
• Before long descents, replenish water and energy to avoid a sudden drop in energy at the end.

Trail Running Shorts: More Than Just Comfort

The importance of shorts in a 50km trail run is often underestimated. Many people consider them simply a lightweight lower body piece, but true high-performance trail shorts perform multiple functions, including protection, storage, support, and moisture management. Done right, they help you maintain a smooth running form throughout the race; worn wrong, you might be forced to slow down mid-race due to chafing, stickiness, or restriction.

Chafing-Resistant and Supportive—Invisible Guarantee for Long Distances

• Two-in-One Construction: The inner layer is a tight-fitting compression brief to reduce inner thigh friction, while the outer layer is a lightweight, breathable short, balancing aesthetics with breathability.
• Compression Support: Moderate pressure stabilizes the thigh muscles, delays fatigue, and allows for more powerful descents and sprints.
• Flat Seams: Utilizing a flatlock seam technique, they resist blisters and breakage from prolonged wear.

Quick-Drying and Moisture-Wicking—The Core of Comfort in High Temperatures

• High-Performance Fabric: A polyester + spandex blend wicks moisture away over 30% faster than ordinary running shorts.
• Quick recovery from water: After wading through water, you'll be dry in about 20 minutes, reducing the risk of dampness and friction.
• Ventilation: Side slits and breathable mesh areas facilitate air circulation, especially during climbs or high-temperature conditions.

Storage and accessibility—key aspects of a lightweight packing plan

During a minimalist 50K, the convenience of shorts' storage is often overlooked:

• Waist loop storage strap: Holds 2-4 energy gels, salt pill packs, and small trash bags evenly.
• Anti-slip design: The storage bag has an elastic edging to prevent items from bouncing or falling while running.
• Collaborative design with vest pack: The vest pack holds large items and hydration, while the shorts hold smaller, frequently accessed items.

Freestyle and smooth running form

• Dimensional tailoring: Reduces constriction during long strides and uphill climbs.
• Lightweight construction: High-quality shorts can weigh around 100g, reducing muscle strain.
• Elastic waistband: Adapts to different body shapes without leaving marks or slipping.

Usage and Purchasing Tips

• When trying on pants, simulate long uphill strides and squats to ensure they don't restrict leg movement.
• A two-in-one design is preferred for long distances; avoid frequent use of anti-friction cream in hot weather.
• Pocket capacity and anti-slip performance must be measured to ensure items don't fall out while running.
• It's recommended to test new pants one or two short distances beforehand to avoid any rubbing or feel issues on race day.

Haimont Two-in-One Trail Shorts—a friction-resistant compression liner with an ultralight, breathable outer layer. A looped waistband provides secure storage for energy gels and small items, making it an essential core bottom for a minimalist outfit.

Fueling Strategy

Minimalist 50K Training Requirements

Completing a 50km run with only a vest and trail shorts isn't for everyone. The following requirements can help runners assess whether they are suitable for minimalist training:

Additional Tips

• New runners: We recommend testing a minimalist approach with short distances (20–30 km) to familiarize yourself with water, fuel, and salt tablets before challenging a 50K.
• Route Selection: Prioritize familiar or well-marked trails to avoid the added exertion of complex routes.
• Weather Monitoring: Check the weather before training and bring a lightweight windbreaker or sun hat as a backup.
• Equipment Proficiency: Minimalistic training relies on the functionality of your equipment. Be sure to conduct a test run before setting off to ensure your water bottle and storage bag are easily accessible.

Minimalistic 50K trail training isn't about less is better. Instead, it's about streamlining your equipment, optimizing your fueling, and pacing wisely, focusing on the run itself, your body's feel, and your control of the course. When you complete long distances with just a vest and a pair of performance shorts, you'll more clearly appreciate the value of every stride, every sip of water, and every energy gel. Minimalistic training not only tests your physical fitness but also cultivates strategic awareness and mental resilience.

By choosing the right equipment, strategically planning fuel and pacing, and integrating your own experience and training, every runner can safely and efficiently experience the charm of minimalist trail running. Haimont hopes that by packing light, every runner will not only achieve greater distance but also gain a deeper understanding of their body, equipment, and personal rhythm. Let minimalism become a smart way to push yourself beyond your limitations and explore the mountains.